Mark 14:70

(ubi sup.) There follows: And a little after, they that stood by said again to Peter, Surely thou art one of them, for thou art a Galilæan, and thy speech agreeth thereto. Not that the Galilæans spoke a different tongue from the inhabitants of Jerusalem, for they were both Hebrews, but that each province and region has its own peculiarities, and cannot avoid a vernacular pronunciation.

Therefore Peter was seized with fear, and for-getting the word of the Lord, which said, Whosoever shall confess me before men, him will I confess before my Father, (Matt. 30, 32) he denied our Lord; wherefore there follows: But he began to curse and to swear, saying, I know not this man of whom ye speak.

(ubi sup.)y This maid is not the same, but another, as Matthew says. Indeed we must also understand, that in this second denial he was addressed by two persons, that is, by the maid whom Matthew and Mark mention, and by another person, of whom Luke takes notice. It goes on: And he denied it again. Peter had now returned, for John says that he denied Him again standing at the fire; wherefore the maid said what has been mentioned above, not to him, that is, Peter, but to those who, when he went out, had remained, in such a way however that he heard it; wherefore coming back and standing again at the fire, he contradicted them, and denied their words. For it is evident, if we compare the accounts of all the Evangelists on this matter, that Peter did not the second time deny him before the porch, but within the palace at the fire, whilst Matthew and Mark who mention his having gone out are silent, for the sake of brevity, as to his return.

Peter when he had not the Spirit yielded and lost courage at the voice of a girl, though with the Spirit he was not afraid before princes and kings. But in a mystical sense, the first maid means the wavering, the second, the assent, the third man is the act. This is the threefold denial which the remebrance of the word of the Lord washes away through tears. The cock then crows for us when some preacher up our hearts by repentance to compunction. We then begin to weep, when we are set on fire within by the spark of knowledge, and we go forth, when we cast out what we were within.